After more than ten uninterrupted years in Africa, I took a furlough of more than two years in the United States, and returned to my work in 1874.
I responded to a strong demand on the part of the supporters of Foreign Missions in Africa, that mission operations should no longer be confined to the coast. Unsuccessful efforts had been made to enter by the Gabun, by the Muni, and by the Benito.
On the 10th of September, 1874, I entered the Ogowe River, at Nazareth Bay, one of its several embouchures into the Atlantic, near Cape Lopez, a degree south of the equator. But little was known of the Ogowe. Du Chaillu, in his "Equatorial Africa" (1861), barely mentions it, though he was hunting gorillas and journeying in "Ashango Land," on the sources of the Ngunye, a large southern affluent of the Ogowe.
A French gunboat a few years before had ascended it for one hundred and thirty miles to Lembarene, the head of the Ogowe Delta, and had attached it to France. Two English traders and one German had built trading-houses at that one-hundred-and-thirty-mile limit, and traversed the river with small steam launches in their rubber trade. Besides these three, I was the only other white resident. They were living in the Galwa tribe, cognate in language with the Mpongwe. I settled at a one-hundred-and-fifty-mile limit, in the Akele tribe (cognate with the Benga), building my house at a place called Belambila.
Two years later I abandoned that spot, came down to Lembarene, and built on Kângwe Hill. There I learned the Mpongwe dialect. I remained there until 1880, successful with school and church, and travelling by boat and canoe thousands of miles in the many branches of the Ogowe, through its Delta, and in the lake country of Lakes Onange and Azyingo. In 1880 I took a second furlough to the United States, remaining eighteen months, and returning at the close of 1881.
My prosperous and comfortable station at Kângwe was occupied by a new man, and I resumed my old _rôle_ of pioneer. I travelled up the Ogowe, one hundred and fifty miles beyond Lembarene, ascending and descending the wild waters of its cataracts, and settled at Talaguga, a noted rock near which was subsequently established the French military post, Njoli, at the two-hundred-mile limit of the course of the river. There I was alone with Mrs. Nassau, my nearest white neighbors the two French officers five miles up river at the post, and my successors at Kângwe, seventy miles down river. The inhabitants were wild cannibal Fang, just recently emerged from the interior forest. It was a splendid field for original investigation, and I applied myself to the Fang dialect.